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Groundtech GR-4

1.850,00$
  • EUR: € 1.545,31
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Groundtech GR-4

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FAQ & Support
Store & Products
What brands do you have?
We are an authorized distributor for all major global metal detector brands.
Where is your headquarters?
Our headquarters is located in Istanbul, Turkey.
Can I test the device before buying?
Yes! You can visit our headquarters to test any device in our dedicated test field.
How much does the testing cost?
Testing and demonstrations are completely FREE of charge.
Warranty & Training
Is there a warranty?
Yes, all our devices come with a standard 2-Year Manufacturer Warranty.
Do you provide training?
Absolutely. We offer FREE comprehensive training on how to use the device.
Do you have technical support?
Yes, we have a dedicated technical support team available to help you after purchase.
What if the device breaks?
We handle repairs through our authorized service center.
Shipping & Payment
Do you ship internationally?
Yes, we ship worldwide via DHL/FedEx. All shipments are insured.
How long does delivery take?
Usually 3-7 business days depending on your location.
What payment methods do you accept?
We accept Credit Cards, Bank Transfers, and Cash at our headquarters.
Not found your answer? Ask an Expert
Purchase Options
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1.850,00$
  • EUR: € 1.545,31
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The new generation GR-4 is an advanced ground scanning and detector system that allows you to detect underground anomalies, perform 3D analysis, and instantly evaluate the results. COMING SOON!

Product Description

 

Groundtech GR-4

★★★★★ (4.9/5 Rating)

3D Scanning Made Simple | In Stock & Ready to Ship

“Locate hidden rooms, tunnels, and deep treasures up to 15 meters with your smartphone.”

GOLDOT Certified Dealer – Buy Now

Key Features

Brand: Groundtech
Max Depth: 15 Meters
Search Systems: 3D Ground Scan, Live Scan, Pinpointer
Made In: Turkey (Conrad Engineering)
Tech: Smart 3D CN-D Sensor
Warranty: 2 Years
Shipping: Free Worldwide Express

Discover What Lies Beneath

The Groundtech GR-4 is designed for treasure hunters who need a lightweight, stealthy device without compromising on depth. Unlike traditional heavy detectors, the GR-4 is a “stick” sensor that connects wirelessly to your tablet or phone.

Using advanced sensor technology, it visualizes the underground in 3D, allowing you to see the difference between voids (caves, tunnels) and metals before you start digging.

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Model Comparison: GR-4 vs. GR-4 Dual

Feature GR-4 (Standard) GR-4 Dual
Technology 3D Ground Sensor (Magnetic) 3D Sensor + Pulse Induction (PI)
Best For Deep voids, tunnels, cellars, large caches All Standard features + Single coins & Gold rings
Discrimination Via 3D App Analysis Audio/LED (Iron vs Gold)
Detection Modes 3 (3D Scan, Live, Pinpointer) 4 (Plus Detector Mode)

3 Professional Operating Modes

The GR-4 is equipped with high-sensitivity sensors that allow you to scan the ground in three different ways via the G-Portal App:

1. 3D Ground Scanning
The primary mode. It gathers data from the ground to create a full 3D graph. You can analyze the shape, depth, and size of underground objects up to 15 meters deep.
2. Live Scanning
Walk and scan simultaneously without saving data. This mode provides a real-time 2D visualization, showing red for metal and blue for voids. Perfect for rapid scouting.
3. Pinpointer
Once you find a potential target, use Pinpointer mode to locate its exact center. This high-sensitivity digital mode helps you define the precise spot to dig.

Technical Specifications

I. System & Sensor Technology
System Type 3D Ground Scanner & Vertical Mining Detector
Sensor Technology MFS-2 Dual Sensor Technology (Gradiometer)
Sensor Sensitivity ± 2000 µT
Scanning Modes 3D Ground Scan, Live Scan, Pinpointer
A/D Converter 12-bit High Resolution
Detection Depth Up to 15 Meters
II. Hardware & Power
CPU Frequency 240 MHz (High Speed Core)
Communication Bluetooth 4.2 BLE (Low Energy)
Battery Type Built-in 3.7V Li-ion Rechargeable
Operating Time Approx. 10 Hours (Continuous)
Charging Input Type-C USB (25W Fast Charging)
Operating Temperature 0°C to 70°C
Storage Temperature -20°C to 60°C
III. Physical & Software
Construction ABS Plastic & Aluminum Body
Design Factor Foldable Modular Structure (Adjustable Grip)
Weight approx. 600 g (Ultra-Lightweight)
Dimensions 810 x 70 x 70 mm
Languages Device: 11 Languages / App: 25 Languages
3D Visualization Full 3D/4D Analysis Graphs
Warranty 2 Years Manufacturer Warranty

Ideal Applications

  • Void Detection: Finding caves, tunnels, cellars, and tombs.
  • Deep Treasure: Locating large chests and statues.
  • Infrastructure: Mapping pipes and underground structures.
  • Archaeology: Non-invasive site surveying.

Package Contents

  • GR-4 Main Unit (Telescopic)
  • 5 Volt Charging Adapter & Cable
  • Hard Transport Case
  • Wrist Strap & User Manual
  • Warranty Certificate (2 Years)

Software & App Center

Professional Analysis with G-Portal

The GR-4 leverages the powerful G-Portal application to turn your smartphone into a professional workstation. Rotate, filter, and zoom into 3D underground models in real-time. Compatible with the latest Android and iOS hardware.

Maintenance & Updates:

Connect your device via Bluetooth 4.2 to sync scan data or update firmware directly through the app.

Frequently Asked Questions

Do I need to be an expert to use the GR-4?

No, the GR-4 is designed for “Start and Go” operation. The G-Portal app is user-friendly, and the device calibrates automatically to the soil.

Can I use this for finding single coins?

The GR-4 is a 3D Ground Scanner specialized for larger, deeper objects (voids, chests). For single coin hunting on the surface, we recommend the GR-4 Dual model, which includes a Pulse Induction Metal Detector mode specifically for that purpose.

Is the tablet included?

The device connects to your own Android or iOS smartphone/tablet. This keeps the device lighter and allows you to use a screen you are already comfortable with.

Video Demonstration

Technical Specifications

SKUConrad-GR4